Carton having a lid comprising a double pelìcula pelìcula impermeable to gas and a pelìcula permeable to gas, separable blades

摘要

Invention patent: b "carton having a lid comprising a double pelu00eccula pelu00eccula impermeable to gas and a pelu00eccula permeable to gas, separable strip" d .A packaging film and method for manufacturing such a double package is described, which combines the simplicity of manufacture of a carton having a lid only.Detachable with the deployability consistent of a packaging having lids separated permeable and impermeable.This is accomplished by producing is a support member (12) and a lid (24) having a film permeable to gas (26) and a layer substantially impermeable to gas (28).A first thermal casting (30) joins the film permeable to gas in the support member and a second thermal casting (32) connects the film impermeable to gas in the film permeable to gas.The first and second foundry plants, each one has a bond strength that is greater than the cohesive strength intrapelu00edcula film permeable to gas,So that the lid preferably splits in slides in the gas permeable film with the deployment, thus leaving a portion of the gas permeable film covered on the support member.